Compact Optical Switches and Modulators Based on Dispersion Engineered Photonic Crystals
We use slow-light photonic crystals to enhance optical switching and modulation in silicon. By using dispersion-engineered designs, a switch as short as 5 ¿m was achieved, in which we have demonstrated rerouting of optical pulses on a 3-ps time scale through the absorption of a femtosecond pulse. We...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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IEEE
2010-01-01
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| Series: | IEEE Photonics Journal |
| Subjects: | |
| Online Access: | https://ieeexplore.ieee.org/document/5446361/ |
| _version_ | 1818619641103122432 |
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| author | Liam O'Faolain Daryl M. Beggs Thomas P. White Tobias Kampfrath Kobus Kuipers Thomas F. Krauss |
| author_facet | Liam O'Faolain Daryl M. Beggs Thomas P. White Tobias Kampfrath Kobus Kuipers Thomas F. Krauss |
| author_sort | Liam O'Faolain |
| collection | DOAJ |
| description | We use slow-light photonic crystals to enhance optical switching and modulation in silicon. By using dispersion-engineered designs, a switch as short as 5 ¿m was achieved, in which we have demonstrated rerouting of optical pulses on a 3-ps time scale through the absorption of a femtosecond pulse. We additionally demonstrate a modulator with a Mach-Zehnder interferometer (MZI) configuration with flat-band slow-light photonic crystal phase shifters that is designed to give a large group-index-bandwidth product. An extinction ratio in excess of 15 dB is obtained over the entire 11-nm bandwidth of the modulator. |
| first_indexed | 2024-12-16T17:40:43Z |
| format | Article |
| id | doaj.art-aeae5cd679c24849939d8562c172f698 |
| institution | Directory Open Access Journal |
| issn | 1943-0655 |
| language | English |
| last_indexed | 2024-12-16T17:40:43Z |
| publishDate | 2010-01-01 |
| publisher | IEEE |
| record_format | Article |
| series | IEEE Photonics Journal |
| spelling | doaj.art-aeae5cd679c24849939d8562c172f6982022-12-21T22:22:37ZengIEEEIEEE Photonics Journal1943-06552010-01-012340441410.1109/JPHOT.2010.20479185446361Compact Optical Switches and Modulators Based on Dispersion Engineered Photonic CrystalsLiam O'Faolain0Daryl M. Beggs1Thomas P. White2Tobias Kampfrath3Kobus Kuipers4Thomas F. Krauss5$^{1}$School of Physics and Astronomy, University of St Andrews, St. Andrews, U.K.Sch. of Phys. & Astron., Univ. of St Andrews, St. Andrews, UKSch. of Phys. & Astron., Univ. of St Andrews, St. Andrews, UK$^{2}$FOM Institute AMOLF, Amsterdam, The NetherlandsFOM Inst. AMOLF, Amsterdam, NetherlandsSch. of Phys. & Astron., Univ. of St Andrews, St. Andrews, UKWe use slow-light photonic crystals to enhance optical switching and modulation in silicon. By using dispersion-engineered designs, a switch as short as 5 ¿m was achieved, in which we have demonstrated rerouting of optical pulses on a 3-ps time scale through the absorption of a femtosecond pulse. We additionally demonstrate a modulator with a Mach-Zehnder interferometer (MZI) configuration with flat-band slow-light photonic crystal phase shifters that is designed to give a large group-index-bandwidth product. An extinction ratio in excess of 15 dB is obtained over the entire 11-nm bandwidth of the modulator.https://ieeexplore.ieee.org/document/5446361/Engineered photonic nanostructuresultrafast nonlinear processesnonlinear effectsslow lightsilicon nanophotonicsphotonic crystals |
| spellingShingle | Liam O'Faolain Daryl M. Beggs Thomas P. White Tobias Kampfrath Kobus Kuipers Thomas F. Krauss Compact Optical Switches and Modulators Based on Dispersion Engineered Photonic Crystals IEEE Photonics Journal Engineered photonic nanostructures ultrafast nonlinear processes nonlinear effects slow light silicon nanophotonics photonic crystals |
| title | Compact Optical Switches and Modulators Based on Dispersion Engineered Photonic Crystals |
| title_full | Compact Optical Switches and Modulators Based on Dispersion Engineered Photonic Crystals |
| title_fullStr | Compact Optical Switches and Modulators Based on Dispersion Engineered Photonic Crystals |
| title_full_unstemmed | Compact Optical Switches and Modulators Based on Dispersion Engineered Photonic Crystals |
| title_short | Compact Optical Switches and Modulators Based on Dispersion Engineered Photonic Crystals |
| title_sort | compact optical switches and modulators based on dispersion engineered photonic crystals |
| topic | Engineered photonic nanostructures ultrafast nonlinear processes nonlinear effects slow light silicon nanophotonics photonic crystals |
| url | https://ieeexplore.ieee.org/document/5446361/ |
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